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MCQs

Total Questions : 29 | Page 3 of 3 pages
Question 21.  Virulent and nonvirulent viruses may not
  1.    inhibit host cell DNA synthesis
  2.    inhibit host cell RNA synthesis
  3.    stimulate host cell macromolecule synthesis
  4.    degrade host cell DNA
 Discuss Question
Answer: Option D. -> degrade host cell DNA
Question 22. . The hepadnaviruses such as hepatitis B virus are quite different from other DNA viruses with respect to genome replication. These replicate their DNA using
  1.    DNA-dependent DNA polymerase
  2.    reverse transcriptase
  3.    Rnase H
  4.    DNA ligase
 Discuss Question
Answer: Option B. -> reverse transcriptase
Question 23. . Viroids are composed of
  1.    single-stranded DNA
  2.    double-stranded DNA
  3.    single-stranded RNA
  4.    double-stranded RNA
 Discuss Question
Answer: Option C. -> single-stranded RNA
Question 24. . Which of the following virus is always detectable after infections?
  1.    Hepatitis B virus
  2.    Herpes simplex virus
  3.    Varicella-zoster virus
  4.    Cytomegalovirus
 Discuss Question
Answer: Option A. -> Hepatitis B virus
Question 25. . Which of the following has been linked to Kaposi's sarcoma?
  1.    Epstein-Barr virus
  2.    Human T-cell lymphotropic virus
  3.    Human papilloma virus
  4.    Human herpes virus 8
 Discuss Question
Answer: Option D. -> Human herpes virus 8
Question 26. . Virulent and nonvirulent viruses may not
  1.    inhibit host cell DNA synthesis
  2.    inhibit host cell RNA synthesis
  3.    stimulate host cell macromolecule synthesis
  4.    degrade host cell DNA
 Discuss Question
Answer: Option D. -> degrade host cell DNA
Question 27. . Which of the following virus is always detectable after infections?
  1.    Hepatitis B virus
  2.    Herpes simplex virus
  3.    Varicella-zoster virus
  4.    Cytomegalovirus
 Discuss Question
Answer: Option A. -> Hepatitis B virus
Question 28. . The hepadnaviruses such as hepatitis B virus are quite different from other DNA viruses with respect to genome replication. These replicate their DNA using
  1.    DNA-dependent DNA polymerase
  2.    reverse transcriptase
  3.    Rnase H
  4.    DNA ligase
 Discuss Question
Answer: Option B. -> reverse transcriptase
Question 29. . Viroids are composed of
  1.    single-stranded DNA
  2.    double-stranded DNA
  3.    single-stranded RNA
  4.    double-stranded RNA
 Discuss Question
Answer: Option C. -> single-stranded RNA

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